Han-Kobayashi Signaling in MIMO Broadcasting

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Journal Article
IEEE Communications Letters, 2019, 23 (5), pp. 855 - 858
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© 1997-2012 IEEE. This letter applies Han-Kobayashi (H-K) superposition signaling to a network of a multi-antenna transmitter serving two multi-antenna users. By making the rate of the common message for both users contribute to user individual rate, it shows that H-K superposition signaling clearly outperforms both state-of-the-art orthogonal multiaccess and nonorthogonal multiaccess schemes (NOMA) in terms of the worst user rate. More importantly, unlike NOMA, H-K superposition signaling does not require the user channels to be differentiated for efficient implementation.
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